Home / 10,116.50-15,174.74-3,191

Finding the Fourth Proportional to 10,116.50, 15,174.74 and 3,191

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Solution

The fourth proportional to 10,116.50, 15,174.74 and 3,191 is: 4,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.50 : 15,174.74 = 3,191 : x
  2. Step 2: Convert to fraction form
    10,116.50/15,174.74 = 3,191/x
  3. Step 3: Cross multiply
    10,116.50x = 15,174.74 × 3,191
  4. Step 4: Simplify right side
    10,116.50x = 48,422,595.34
  5. Step 5: Solve for x
    x = 48,422,595.34/10,116.50
  6. Step 6: Final answer
    x = 4,786.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.